How to Fix Featured Image Appearing Twice Issue?

Inserting featured image inside post editor is a common mistake made by beginners.

Once you set a featured image, you don’t need to insert it into the post editor along with your post content.

Doing so, will make your featured image appear twice. Once as the featured image, and once as an image inside the post.

You can add other images in your post, but your featured image goes in the featured image box.